Metered on the number of 5 KB messages needed to encode the body section of the HTTP request

Responses

Metered on the number of 5 KB messages needed to encode the body section of the HTTP response

Negative Responses

If HTTP responses with HTTP response codes in the 4xx and 5xx range contains a body, AWS IoT Core meters the number of 5 KB message needed to encode the response body

Registry

You are charged for a Registry operation each time you make a call to one of the following APIs:

AddThingToThingGroup

AttachThingPrincipal

CreateThing

CreateThingGroup

CreateThingType

DescribeThing

DescribeThingGroup

DescribeThingType

ListChildThingGroups

ListPrincipalThings

ListThingGroups

ListThingGroupsForThing

ListThingPrincipals

ListThings

ListThingsInThingGroup

ListThingTypes

UpdateThing

UpdateThingGroup

UpdateThingGroupsForThing

Note that for all List operations, metering takes into account total size of all records returned by API call. For example, if a ListThings API call returns (50) 2 KB Things from Registry, your request Is charged for (100) 1K increments, and is metered as 100 requests. If you opt-in for Registry Events, any update messages will be subject to Messaging charges.

Device Shadow

Device Shadow operations are metered when you make an API call to GetThingShadow or UpdateThingShadow, or when an MQTT message creates, updates, or gets a Device Shadow. If you opt-in for Device Shadow updates, the update messages will be subject to Messaging charges.

Rules Engine

A rule can invoke up to 10 actions, where an action is an external function call (i.e. Get_Thing_Type()), or a call to an external service (Amazon S3, Amazon Kinesis, Amazon SNS, etc.). Arithmetic and logical SQL functions are not metered as actions. Rules that process a message generated by AWS IoT Core are metered as a single rule, regardless of message size. For example, a 7KB Device Shadow document may publish a /delta or /documents message that is quite large, however any rules triggered by such an update will be metered as if the message were 5KB.